/* roulang page: index */
:root {
            --color-primary: #1a1040;
            --color-primary-light: #2d1a6b;
            --color-accent: #ff5e14;
            --color-accent-hover: #e84d0a;
            --color-accent-soft: #fff1eb;
            --color-gold: #f0a500;
            --color-gold-light: #fff8e7;
            --color-bg: #f5f3fa;
            --color-white: #ffffff;
            --color-text: #1e1633;
            --color-text-secondary: #5c5470;
            --color-text-muted: #8a8299;
            --color-border: #e2ddf0;
            --color-border-light: #f0ecf7;
            --color-success: #10b981;
            --color-success-bg: #ecfdf5;
            --color-danger: #ef4444;
            --color-card-shadow: 0 2px 12px rgba(26, 16, 64, 0.06);
            --color-card-shadow-hover: 0 8px 30px rgba(26, 16, 64, 0.12);
            --color-nav-shadow: 0 2px 20px rgba(26, 16, 64, 0.08);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --radius-full: 50px;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Segoe UI', sans-serif;
            --section-gap: 80px;
            --section-gap-mobile: 48px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
            min-height: 100vh;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
        }
        :focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container-custom {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container-custom {
                padding: 0 16px;
            }
        }

        /* ========== NAVBAR ========== */
        .site-navbar {
            background: var(--color-white);
            box-shadow: var(--color-nav-shadow);
            position: sticky;
            top: 0;
            z-index: 1050;
            padding: 0;
            min-height: 64px;
            display: flex;
            align-items: center;
        }
        .site-navbar .navbar-brand {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--color-primary);
            letter-spacing: -0.3px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition-fast);
        }
        .site-navbar .navbar-brand:hover {
            color: var(--color-accent);
        }
        .site-navbar .navbar-brand .brand-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--color-accent), #ff8c42);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
        }
        .site-navbar .nav-link {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            padding: 8px 16px !important;
            border-radius: var(--radius-full);
            transition: all var(--transition-fast);
            margin: 0 2px;
            white-space: nowrap;
        }
        .site-navbar .nav-link:hover {
            color: var(--color-accent);
            background: var(--color-accent-soft);
        }
        .site-navbar .nav-link.active {
            color: var(--color-accent);
            background: var(--color-accent-soft);
            font-weight: 600;
        }
        .site-navbar .nav-cta-btn {
            background: var(--color-accent);
            color: #fff !important;
            padding: 10px 22px !important;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-base);
            box-shadow: 0 4px 14px rgba(255, 94, 20, 0.3);
        }
        .site-navbar .nav-cta-btn:hover {
            background: var(--color-accent-hover);
            box-shadow: 0 6px 20px rgba(255, 94, 20, 0.4);
            transform: translateY(-1px);
            color: #fff !important;
        }
        .site-navbar .search-box {
            display: flex;
            align-items: center;
            background: var(--color-bg);
            border-radius: var(--radius-full);
            padding: 6px 14px;
            gap: 8px;
            border: 1.5px solid transparent;
            transition: all var(--transition-fast);
            min-width: 200px;
        }
        .site-navbar .search-box:focus-within {
            border-color: var(--color-accent);
            background: var(--color-white);
            box-shadow: 0 0 0 3px rgba(255, 94, 20, 0.08);
        }
        .site-navbar .search-box input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 0.9rem;
            color: var(--color-text);
            width: 100%;
            min-width: 120px;
        }
        .site-navbar .search-box input::placeholder {
            color: var(--color-text-muted);
        }
        .site-navbar .search-box button {
            border: none;
            background: transparent;
            color: var(--color-text-muted);
            cursor: pointer;
            padding: 4px;
            transition: color var(--transition-fast);
        }
        .site-navbar .search-box button:hover {
            color: var(--color-accent);
        }
        .navbar-toggler {
            border: none;
            padding: 6px 8px;
            box-shadow: none !important;
        }
        .navbar-toggler:focus {
            box-shadow: none;
        }
        @media (max-width: 991px) {
            .site-navbar .navbar-collapse {
                background: var(--color-white);
                padding: 16px;
                border-radius: var(--radius-md);
                margin-top: 8px;
                box-shadow: var(--color-card-shadow);
            }
            .site-navbar .search-box {
                min-width: auto;
                width: 100%;
                margin: 8px 0;
            }
            .site-navbar .nav-cta-btn {
                display: inline-block;
                text-align: center;
                margin-top: 4px;
            }
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            background: linear-gradient(155deg, var(--color-primary) 0%, var(--color-primary-light) 40%, #1e1058 100%);
            min-height: 580px;
            display: flex;
            align-items: center;
            overflow: hidden;
            padding: 60px 0;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            z-index: 1;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(to top, var(--color-bg), transparent);
            z-index: 2;
        }
        .hero-content {
            position: relative;
            z-index: 3;
            color: #fff;
            max-width: 700px;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 6px 16px;
            border-radius: var(--radius-full);
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 20px;
            letter-spacing: 0.3px;
        }
        .hero-badge .dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            background: var(--color-accent);
            border-radius: 50%;
            margin-right: 8px;
            animation: pulse-dot 1.8s infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.6); }
        }
        .hero-title {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 18px;
            letter-spacing: -0.5px;
        }
        .hero-title .highlight {
            color: var(--color-gold);
            position: relative;
        }
        .hero-desc {
            font-size: 1.12rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.75;
            margin-bottom: 32px;
            max-width: 560px;
        }
        .hero-buttons {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn-hero-primary {
            background: var(--color-accent);
            color: #fff;
            border: none;
            padding: 14px 32px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition-base);
            box-shadow: 0 6px 22px rgba(255, 94, 20, 0.35);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-hero-primary:hover {
            background: var(--color-accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(255, 94, 20, 0.45);
            color: #fff;
        }
        .btn-hero-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.4);
            padding: 14px 32px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-hero-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }
        .hero-visual {
            position: relative;
            z-index: 3;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .hero-visual img {
            max-height: 380px;
            border-radius: var(--radius-lg);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
            object-fit: cover;
        }
        @media (max-width: 991px) {
            .hero-section {
                min-height: auto;
                padding: 48px 0;
                text-align: center;
            }
            .hero-content {
                max-width: 100%;
                margin-bottom: 32px;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-desc {
                max-width: 100%;
                font-size: 1rem;
            }
            .hero-buttons {
                justify-content: center;
            }
            .hero-visual img {
                max-height: 240px;
            }
        }
        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.55rem;
            }
            .hero-desc {
                font-size: 0.9rem;
            }
            .btn-hero-primary,
            .btn-hero-outline {
                padding: 12px 22px;
                font-size: 0.9rem;
            }
        }

        /* ========== SECTION COMMON ========== */
        .section-block {
            padding: var(--section-gap) 0;
        }
        @media (max-width: 768px) {
            .section-block {
                padding: var(--section-gap-mobile) 0;
            }
        }
        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--color-accent);
            background: var(--color-accent-soft);
            padding: 5px 14px;
            border-radius: var(--radius-full);
            letter-spacing: 0.4px;
            margin-bottom: 12px;
            text-transform: uppercase;
        }
        .section-title {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 10px;
            letter-spacing: -0.3px;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--color-text-secondary);
            max-width: 600px;
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .section-title {
                font-size: 1.5rem;
            }
        }

        /* ========== FEATURE CARDS ========== */
        .feature-card {
            background: var(--color-white);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
            height: 100%;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 0;
            background: var(--color-accent);
            border-radius: 0 0 4px 0;
            transition: height var(--transition-slow);
        }
        .feature-card:hover {
            box-shadow: var(--color-card-shadow-hover);
            transform: translateY(-4px);
            border-color: transparent;
        }
        .feature-card:hover::before {
            height: 60px;
        }
        .feature-card .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 18px;
            background: var(--color-accent-soft);
            color: var(--color-accent);
        }
        .feature-card h3 {
            font-family: var(--font-heading);
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-text);
        }
        .feature-card p {
            font-size: 0.92rem;
            color: var(--color-text-secondary);
            margin: 0;
            line-height: 1.65;
        }
        .feature-card .card-img-wrap {
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-bottom: 16px;
            aspect-ratio: 16 / 10;
        }
        .feature-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .feature-card:hover .card-img-wrap img {
            transform: scale(1.05);
        }

        /* ========== CMS LIST ========== */
        .cms-list-item {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            margin-bottom: 12px;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            display: flex;
            gap: 18px;
            align-items: flex-start;
        }
        .cms-list-item:hover {
            box-shadow: var(--color-card-shadow-hover);
            border-color: transparent;
            transform: translateX(4px);
        }
        .cms-list-item .cms-thumb {
            width: 80px;
            height: 60px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--color-bg);
        }
        .cms-list-item .cms-info {
            flex: 1;
            min-width: 0;
        }
        .cms-list-item .cms-title {
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text);
            margin-bottom: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition-fast);
        }
        .cms-list-item:hover .cms-title {
            color: var(--color-accent);
        }
        .cms-list-item .cms-meta {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .cms-list-item .cms-summary {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            margin-top: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .cms-empty-state {
            text-align: center;
            padding: 48px 20px;
            color: var(--color-text-muted);
            font-size: 1rem;
            background: var(--color-white);
            border-radius: var(--radius-lg);
            border: 1px dashed var(--color-border);
        }
        @media (max-width: 520px) {
            .cms-list-item {
                flex-direction: column;
                gap: 10px;
            }
            .cms-list-item .cms-thumb {
                width: 100%;
                height: 140px;
            }
        }

        /* ========== STATS COUNTER ========== */
        .stats-row {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .stat-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 28px 32px;
            text-align: center;
            flex: 1;
            min-width: 160px;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
        }
        .stat-card:hover {
            box-shadow: var(--color-card-shadow-hover);
            transform: translateY(-3px);
        }
        .stat-number {
            font-family: var(--font-heading);
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--color-accent);
            line-height: 1.1;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            margin-top: 6px;
        }

        /* ========== FAQ ========== */
        .faq-accordion .accordion-item {
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md) !important;
            margin-bottom: 10px;
            overflow: hidden;
            background: var(--color-white);
        }
        .faq-accordion .accordion-button {
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text);
            background: var(--color-white);
            box-shadow: none !important;
            padding: 18px 22px;
            border-radius: var(--radius-md) !important;
            transition: all var(--transition-fast);
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--color-accent);
            background: var(--color-accent-soft);
            border-bottom: 1px solid var(--color-border-light);
        }
        .faq-accordion .accordion-button::after {
            transition: all var(--transition-base);
        }
        .faq-accordion .accordion-body {
            padding: 18px 22px;
            color: var(--color-text-secondary);
            line-height: 1.75;
            font-size: 0.95rem;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, #251358 100%);
            border-radius: var(--radius-xl);
            padding: 56px 48px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 140px;
            height: 140px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 500px;
            margin: 0 auto 28px;
            position: relative;
            z-index: 1;
        }
        .cta-section .btn-cta-lg {
            background: var(--color-accent);
            color: #fff;
            border: none;
            padding: 15px 38px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 1.05rem;
            transition: all var(--transition-base);
            box-shadow: 0 8px 26px rgba(255, 94, 20, 0.4);
            position: relative;
            z-index: 1;
        }
        .cta-section .btn-cta-lg:hover {
            background: #fff;
            color: var(--color-accent);
            box-shadow: 0 10px 32px rgba(255, 255, 255, 0.3);
            transform: translateY(-2px);
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 40px 24px;
                border-radius: var(--radius-lg);
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 28px;
            font-size: 0.9rem;
        }
        .site-footer .footer-brand {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.3rem;
            color: #fff;
            margin-bottom: 8px;
        }
        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            transition: color var(--transition-fast);
            font-size: 0.9rem;
        }
        .site-footer .footer-links a:hover {
            color: #fff;
        }
        .site-footer .footer-divider {
            border-color: rgba(255, 255, 255, 0.12);
            margin: 24px 0;
        }
        .site-footer .copyright {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.82rem;
        }
        @media (max-width: 768px) {
            .site-footer {
                padding: 36px 0 20px;
                text-align: center;
            }
            .site-footer .footer-links {
                justify-content: center;
                gap: 14px;
            }
        }

        /* ========== BADGE / TAG ========== */
        .tag-badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            font-size: 0.78rem;
            font-weight: 500;
            letter-spacing: 0.2px;
        }
        .tag-hot {
            background: #fef2f2;
            color: #dc2626;
        }
        .tag-new {
            background: #ecfdf5;
            color: #059669;
        }
        .tag-recommend {
            background: #fff8e7;
            color: #d97706;
        }

        /* ========== DIVIDER ========== */
        .divider-dot {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 16px 0;
        }
        .divider-dot span {
            width: 5px;
            height: 5px;
            background: var(--color-border);
            border-radius: 50%;
        }

        /* ========== COVER CARD GRID ========== */
        .cover-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            height: 100%;
        }
        .cover-card:hover {
            box-shadow: var(--color-card-shadow-hover);
            transform: translateY(-5px);
        }
        .cover-card .cover-img {
            aspect-ratio: 16 / 10;
            overflow: hidden;
        }
        .cover-card .cover-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .cover-card:hover .cover-img img {
            transform: scale(1.06);
        }
        .cover-card .cover-body {
            padding: 20px;
        }
        .cover-card .cover-body h4 {
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 6px;
            color: var(--color-text);
        }
        .cover-card .cover-body p {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        /* ========== ANIMATIONS ========== */
        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(24px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .animate-fade-in-up {
            animation: fadeInUp 0.6s ease forwards;
        }
        .delay-1 { animation-delay: 0.1s; }
        .delay-2 { animation-delay: 0.2s; }
        .delay-3 { animation-delay: 0.3s; }
        .delay-4 { animation-delay: 0.4s; }

        /* ========== SCROLLBAR ========== */
        ::-webkit-scrollbar {
            width: 6px;
        }
        ::-webkit-scrollbar-track {
            background: var(--color-bg);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--color-border);
            border-radius: 10px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--color-text-muted);
        }

/* roulang page: category1 */
:root {
            --color-primary: #6366f1;
            --color-primary-dark: #4f46e5;
            --color-primary-light: #818cf8;
            --color-accent: #f59e0b;
            --color-accent-dark: #d97706;
            --color-bg: #f8fafc;
            --color-bg-alt: #f1f5f9;
            --color-bg-dark: #0f172a;
            --color-bg-card: #ffffff;
            --color-text: #1e293b;
            --color-text-secondary: #64748b;
            --color-text-light: #94a3b8;
            --color-text-on-dark: #e2e8f0;
            --color-border: #e2e8f0;
            --color-border-light: #f1f5f9;
            --color-success: #10b981;
            --color-danger: #ef4444;
            --color-info: #3b82f6;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-2xl: 24px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 12px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.04);
            --shadow-lg: 0 12px 32px rgba(0,0,0,0.12), 0 4px 8px rgba(0,0,0,0.06);
            --shadow-xl: 0 20px 48px rgba(0,0,0,0.16), 0 8px 16px rgba(0,0,0,0.08);
            --shadow-glow: 0 0 40px rgba(99,102,241,0.25);
            --transition-fast: 0.15s cubic-bezier(0.4,0,0.2,1);
            --transition-base: 0.25s cubic-bezier(0.4,0,0.2,1);
            --transition-slow: 0.4s cubic-bezier(0.4,0,0.2,1);
            --font-heading: 'PingFang SC','Microsoft YaHei','Helvetica Neue',sans-serif;
            --font-body: 'PingFang SC','Microsoft YaHei','Helvetica Neue',sans-serif;
            --section-gap: 80px;
            --section-gap-sm: 48px;
        }

        *,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
        body{font-family:var(--font-body);font-size:16px;line-height:1.7;color:var(--color-text);background:var(--color-bg);overflow-x:hidden;min-height:100vh}
        a{text-decoration:none;color:inherit;transition:color var(--transition-fast)}
        img{max-width:100%;height:auto;display:block}
        button,input,select,textarea{font-family:inherit}
        ul,ol{list-style:none;padding:0;margin:0}

        .container-custom{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
        @media(min-width:1400px){.container-custom{max-width:1280px}}

        .site-navbar{background:rgba(255,255,255,0.92);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--color-border);padding:10px 0;position:sticky;top:0;z-index:1050;box-shadow:var(--shadow-sm);transition:box-shadow var(--transition-base)}
        .site-navbar.scrolled{box-shadow:var(--shadow-md)}
        .site-navbar .navbar-brand{display:flex;align-items:center;gap:10px;font-family:var(--font-heading);font-weight:700;font-size:1.25rem;color:var(--color-primary);letter-spacing:-0.02em;white-space:nowrap}
        .site-navbar .navbar-brand .brand-icon{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;background:linear-gradient(135deg,var(--color-primary),var(--color-primary-dark));border-radius:var(--radius-sm);color:#fff;font-size:1.1rem;flex-shrink:0}
        .site-navbar .navbar-brand:hover{color:var(--color-primary-dark)}
        .site-navbar .nav-link{font-weight:500;font-size:0.95rem;color:var(--color-text-secondary);padding:8px 16px;border-radius:var(--radius-sm);transition:all var(--transition-fast);position:relative}
        .site-navbar .nav-link:hover{color:var(--color-primary);background:rgba(99,102,241,0.06)}
        .site-navbar .nav-link.active{color:var(--color-primary);font-weight:600;background:rgba(99,102,241,0.08)}
        .site-navbar .nav-link.active::after{content:'';position:absolute;bottom:2px;left:50%;transform:translateX(-50%);width:20px;height:3px;background:var(--color-primary);border-radius:4px}
        .search-box{display:flex;align-items:center;gap:6px;background:var(--color-bg-alt);border:1px solid var(--color-border);border-radius:24px;padding:7px 14px;transition:all var(--transition-fast)}
        .search-box:focus-within{border-color:var(--color-primary);box-shadow:0 0 0 3px rgba(99,102,241,0.1);background:#fff}
        .search-box button{background:none;border:none;color:var(--color-text-light);cursor:pointer;padding:4px;display:flex;align-items:center;font-size:0.9rem;transition:color var(--transition-fast)}
        .search-box button:hover{color:var(--color-primary)}
        .search-box input{border:none;outline:none;background:transparent;font-size:0.9rem;color:var(--color-text);width:140px;line-height:1.4}
        .search-box input::placeholder{color:var(--color-text-light)}
        .nav-cta-btn{display:inline-flex;align-items:center;gap:6px;background:linear-gradient(135deg,var(--color-primary),var(--color-primary-dark));color:#fff;font-weight:600;font-size:0.9rem;padding:9px 20px;border-radius:24px;white-space:nowrap;transition:all var(--transition-base);box-shadow:0 4px 14px rgba(99,102,241,0.3);letter-spacing:0.01em}
        .nav-cta-btn:hover{background:linear-gradient(135deg,var(--color-primary-dark),#3730a3);color:#fff;box-shadow:0 6px 20px rgba(99,102,241,0.45);transform:translateY(-1px)}
        .nav-cta-btn:active{transform:translateY(0);box-shadow:0 2px 8px rgba(99,102,241,0.3)}

        @media(max-width:991px){
            .site-navbar .navbar-collapse{background:#fff;border-radius:var(--radius-lg);padding:16px;margin-top:10px;box-shadow:var(--shadow-lg);border:1px solid var(--color-border)}
            .site-navbar .nav-link{padding:10px 14px;border-radius:var(--radius-sm)}
            .search-box{margin-top:8px;width:100%}
            .search-box input{width:100%}
            .nav-cta-btn{margin-top:8px;width:100%;justify-content:center}
            .site-navbar .d-flex.align-items-center.gap-3{flex-direction:column;align-items:stretch!important;width:100%}
        }

        .page-hero{position:relative;padding:100px 0 80px;background:linear-gradient(180deg,rgba(15,23,42,0.88) 0%,rgba(15,23,42,0.72) 100%),url('/assets/images/backpic/back-1.png') center/cover no-repeat;color:#fff;overflow:hidden}
        .page-hero::before{content:'';position:absolute;top:-60px;right:-80px;width:320px;height:320px;background:radial-gradient(circle,rgba(99,102,241,0.25) 0%,transparent 70%);border-radius:50%;pointer-events:none}
        .page-hero::after{content:'';position:absolute;bottom:-40px;left:-60px;width:260px;height:260px;background:radial-gradient(circle,rgba(245,158,11,0.2) 0%,transparent 70%);border-radius:50%;pointer-events:none}
        .page-hero .hero-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,0.12);border:1px solid rgba(255,255,255,0.2);border-radius:24px;padding:6px 16px;font-size:0.85rem;font-weight:500;color:rgba(255,255,255,0.9);margin-bottom:20px;backdrop-filter:blur(8px);letter-spacing:0.02em}
        .page-hero .hero-badge i{color:var(--color-accent);font-size:0.75rem}
        .page-hero h1{font-family:var(--font-heading);font-size:clamp(2rem,4vw,3rem);font-weight:800;letter-spacing:-0.03em;line-height:1.2;margin-bottom:18px;position:relative;z-index:1}
        .page-hero h1 span{background:linear-gradient(135deg,var(--color-accent),#fbbf24);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
        .page-hero .hero-subtitle{font-size:1.1rem;color:rgba(255,255,255,0.75);max-width:620px;line-height:1.8;margin-bottom:32px;position:relative;z-index:1}
        .page-hero .hero-stats-row{display:flex;flex-wrap:wrap;gap:28px;margin-bottom:32px;position:relative;z-index:1}
        .page-hero .hero-stat-item{display:flex;align-items:center;gap:10px}
        .page-hero .hero-stat-num{font-size:2rem;font-weight:800;color:var(--color-accent);line-height:1}
        .page-hero .hero-stat-label{font-size:0.85rem;color:rgba(255,255,255,0.65);line-height:1.3}
        .hero-cta-group{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:1}
        .btn-hero-primary{display:inline-flex;align-items:center;gap:8px;background:linear-gradient(135deg,var(--color-primary),var(--color-primary-dark));color:#fff;font-weight:600;font-size:1rem;padding:14px 28px;border-radius:28px;border:none;cursor:pointer;transition:all var(--transition-base);box-shadow:0 6px 24px rgba(99,102,241,0.4);letter-spacing:0.01em}
        .btn-hero-primary:hover{background:linear-gradient(135deg,var(--color-primary-dark),#3730a3);color:#fff;box-shadow:0 10px 32px rgba(99,102,241,0.55);transform:translateY(-2px)}
        .btn-hero-primary:active{transform:translateY(0)}
        .btn-hero-outline{display:inline-flex;align-items:center;gap:8px;background:transparent;color:#fff;font-weight:600;font-size:1rem;padding:14px 28px;border-radius:28px;border:2px solid rgba(255,255,255,0.35);cursor:pointer;transition:all var(--transition-base)}
        .btn-hero-outline:hover{background:rgba(255,255,255,0.08);border-color:rgba(255,255,255,0.6);color:#fff}
        @media(max-width:768px){
            .page-hero{padding:70px 0 50px}
            .page-hero h1{font-size:1.7rem}
            .page-hero .hero-subtitle{font-size:0.95rem}
            .page-hero .hero-stats-row{gap:16px}
            .page-hero .hero-stat-num{font-size:1.5rem}
            .hero-cta-group{flex-direction:column;align-items:stretch}
            .btn-hero-primary,.btn-hero-outline{justify-content:center;text-align:center}
        }

        .section-block{padding:var(--section-gap) 0}
        .section-block.alt-bg{background:var(--color-bg-alt)}
        .section-block.dark-bg{background:var(--color-bg-dark);color:var(--color-text-on-dark)}
        .section-label{display:inline-flex;align-items:center;gap:6px;font-size:0.8rem;font-weight:700;text-transform:uppercase;letter-spacing:0.06em;color:var(--color-primary);margin-bottom:10px}
        .section-title{font-family:var(--font-heading);font-size:clamp(1.5rem,3vw,2.2rem);font-weight:700;letter-spacing:-0.02em;margin-bottom:12px;line-height:1.3}
        .section-desc{font-size:1.05rem;color:var(--color-text-secondary);max-width:680px;line-height:1.8;margin-bottom:36px}
        .dark-bg .section-desc{color:rgba(255,255,255,0.6)}
        .dark-bg .section-title{color:#fff}

        .feature-card{background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:28px 24px;transition:all var(--transition-base);position:relative;overflow:hidden;height:100%}
        .feature-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);border-color:transparent}
        .feature-card .feature-icon-wrap{display:inline-flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:var(--radius-md);font-size:1.4rem;margin-bottom:16px;flex-shrink:0}
        .feature-card .feature-icon-wrap.blue{background:rgba(99,102,241,0.1);color:var(--color-primary)}
        .feature-card .feature-icon-wrap.amber{background:rgba(245,158,11,0.1);color:var(--color-accent)}
        .feature-card .feature-icon-wrap.green{background:rgba(16,185,129,0.1);color:var(--color-success)}
        .feature-card .feature-icon-wrap.rose{background:rgba(239,68,68,0.1);color:var(--color-danger)}
        .feature-card h3{font-family:var(--font-heading);font-size:1.15rem;font-weight:700;margin-bottom:8px;color:var(--color-text)}
        .feature-card p{font-size:0.93rem;color:var(--color-text-secondary);line-height:1.7;margin:0}
        .feature-card .feature-tag{display:inline-block;font-size:0.75rem;font-weight:600;padding:3px 10px;border-radius:12px;margin-top:10px;letter-spacing:0.02em}
        .feature-card .feature-tag.hot{background:rgba(239,68,68,0.1);color:var(--color-danger)}
        .feature-card .feature-tag.new{background:rgba(16,185,129,0.1);color:var(--color-success)}
        .feature-card .feature-tag.popular{background:rgba(99,102,241,0.1);color:var(--color-primary)}

        .step-card{display:flex;gap:20px;align-items:flex-start;padding:24px;background:var(--color-bg-card);border-radius:var(--radius-xl);border:1px solid var(--color-border);transition:all var(--transition-base);position:relative}
        .step-card:hover{box-shadow:var(--shadow-md);border-color:transparent}
        .step-number{flex-shrink:0;width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1.2rem;color:#fff;background:linear-gradient(135deg,var(--color-primary),var(--color-primary-dark));box-shadow:0 4px 14px rgba(99,102,241,0.3)}
        .step-card h4{font-family:var(--font-heading);font-weight:700;font-size:1.05rem;margin-bottom:4px;color:var(--color-text)}
        .step-card p{font-size:0.9rem;color:var(--color-text-secondary);margin:0;line-height:1.65}
        .step-connector{display:flex;align-items:center;justify-content:center;padding:4px 0;color:var(--color-text-light);font-size:1.1rem}
        @media(min-width:768px){
            .steps-row{position:relative}
            .steps-row .col-md-3:not(:last-child)::after{content:'';position:absolute;top:40px;right:-14px;width:28px;height:2px;background:var(--color-border);z-index:0}
        }

        .image-card{position:relative;border-radius:var(--radius-xl);overflow:hidden;cursor:pointer;transition:all var(--transition-base);background:var(--color-bg-card);border:1px solid var(--color-border);height:100%}
        .image-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);border-color:transparent}
        .image-card .card-img-wrap{position:relative;overflow:hidden;aspect-ratio:16/10}
        .image-card .card-img-wrap img{width:100%;height:100%;object-fit:cover;transition:transform var(--transition-slow)}
        .image-card:hover .card-img-wrap img{transform:scale(1.06)}
        .image-card .card-img-overlay-tag{position:absolute;top:12px;left:12px;background:rgba(0,0,0,0.7);color:#fff;font-size:0.75rem;font-weight:600;padding:4px 10px;border-radius:12px;backdrop-filter:blur(6px);letter-spacing:0.03em}
        .image-card .card-body{padding:18px 16px}
        .image-card h4{font-family:var(--font-heading);font-weight:700;font-size:1rem;margin-bottom:6px;color:var(--color-text)}
        .image-card .card-meta{font-size:0.8rem;color:var(--color-text-light);display:flex;align-items:center;gap:8px;flex-wrap:wrap}

        .faq-accordion .accordion-item{border:1px solid var(--color-border);border-radius:var(--radius-lg)!important;margin-bottom:12px;overflow:hidden;background:var(--color-bg-card);transition:all var(--transition-fast)}
        .faq-accordion .accordion-item:hover{border-color:var(--color-primary-light)}
        .faq-accordion .accordion-button{font-weight:600;font-size:1rem;color:var(--color-text);padding:18px 20px;box-shadow:none!important;background:transparent;border-radius:var(--radius-lg)!important;transition:all var(--transition-fast)}
        .faq-accordion .accordion-button:not(.collapsed){color:var(--color-primary);background:rgba(99,102,241,0.03);box-shadow:none}
        .faq-accordion .accordion-button:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px rgba(99,102,241,0.1)!important}
        .faq-accordion .accordion-body{font-size:0.95rem;color:var(--color-text-secondary);line-height:1.8;padding:8px 20px 20px}
        .faq-accordion .accordion-button::after{transition:transform var(--transition-base)}

        .cta-banner{background:linear-gradient(135deg,var(--color-primary),#4f46e5,var(--color-primary-dark));border-radius:var(--radius-2xl);padding:48px 40px;text-align:center;color:#fff;position:relative;overflow:hidden}
        .cta-banner::before{content:'';position:absolute;top:-50px;right:-50px;width:200px;height:200px;background:radial-gradient(circle,rgba(255,255,255,0.12) 0%,transparent 70%);border-radius:50%;pointer-events:none}
        .cta-banner::after{content:'';position:absolute;bottom:-30px;left:-30px;width:160px;height:160px;background:radial-gradient(circle,rgba(245,158,11,0.2) 0%,transparent 70%);border-radius:50%;pointer-events:none}
        .cta-banner h3{font-family:var(--font-heading);font-size:clamp(1.4rem,2.5vw,1.9rem);font-weight:800;margin-bottom:10px;position:relative;z-index:1;letter-spacing:-0.02em}
        .cta-banner p{font-size:1rem;opacity:0.85;max-width:500px;margin:0 auto 24px;position:relative;z-index:1;line-height:1.7}
        .cta-banner .btn-cta-lg{display:inline-flex;align-items:center;gap:8px;background:#fff;color:var(--color-primary);font-weight:700;font-size:1rem;padding:14px 32px;border-radius:28px;border:none;cursor:pointer;transition:all var(--transition-base);box-shadow:0 8px 24px rgba(0,0,0,0.2);position:relative;z-index:1}
        .cta-banner .btn-cta-lg:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(0,0,0,0.3);color:var(--color-primary-dark)}
        .cta-banner .btn-cta-lg:active{transform:translateY(0)}

        .stats-row-custom{display:flex;flex-wrap:wrap;gap:20px;justify-content:center}
        .stat-card-custom{flex:1 1 180px;min-width:150px;max-width:220px;background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:24px 16px;text-align:center;transition:all var(--transition-base)}
        .stat-card-custom:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px);border-color:transparent}
        .stat-card-custom .stat-big-num{font-family:var(--font-heading);font-size:2.2rem;font-weight:800;color:var(--color-primary);line-height:1;margin-bottom:6px}
        .stat-card-custom .stat-label-text{font-size:0.9rem;color:var(--color-text-secondary);font-weight:500}
        .dark-bg .stat-card-custom{background:rgba(255,255,255,0.05);border-color:rgba(255,255,255,0.1)}
        .dark-bg .stat-card-custom .stat-big-num{color:var(--color-accent)}
        .dark-bg .stat-card-custom .stat-label-text{color:rgba(255,255,255,0.65)}

        .scenario-card{background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:24px;transition:all var(--transition-base);height:100%;display:flex;flex-direction:column;align-items:flex-start}
        .scenario-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);border-color:transparent}
        .scenario-card .scenario-icon{font-size:1.8rem;margin-bottom:12px}
        .scenario-card h4{font-family:var(--font-heading);font-weight:700;font-size:1.05rem;margin-bottom:6px}
        .scenario-card p{font-size:0.9rem;color:var(--color-text-secondary);margin:0;line-height:1.7;flex-grow:1}

        .site-footer{background:var(--color-bg-dark);color:var(--color-text-on-dark);padding:40px 0 28px;margin-top:var(--section-gap)}
        .site-footer .footer-brand{font-family:var(--font-heading);font-weight:700;font-size:1.2rem;color:#fff;margin-bottom:6px;letter-spacing:-0.02em}
        .footer-links{display:flex;flex-wrap:wrap;gap:20px;list-style:none;padding:0;margin:0}
        .footer-links li a{color:rgba(255,255,255,0.6);font-size:0.9rem;transition:color var(--transition-fast)}
        .footer-links li a:hover{color:#fff}
        .footer-divider{border-color:rgba(255,255,255,0.12);margin:20px 0 16px;opacity:1}
        .copyright{font-size:0.8rem;color:rgba(255,255,255,0.4);margin:0}

        @media(max-width:768px){
            :root{--section-gap:50px;--section-gap-sm:32px}
            .section-block{padding:var(--section-gap) 0}
            .cta-banner{padding:32px 20px;border-radius:var(--radius-xl)}
            .feature-card{padding:22px 16px}
            .step-card{padding:18px 14px;gap:14px}
            .stats-row-custom{gap:12px}
            .stat-card-custom{flex:1 1 130px;min-width:120px;padding:18px 10px}
            .stat-card-custom .stat-big-num{font-size:1.6rem}
            .site-footer{padding:30px 0 20px;margin-top:var(--section-gap)}
            .footer-links{justify-content:center;gap:14px}
        }
        @media(max-width:520px){
            .page-hero h1{font-size:1.45rem}
            .section-title{font-size:1.3rem}
            .feature-card,.scenario-card{padding:16px 12px}
            .image-card .card-body{padding:14px 10px}
            .image-card h4{font-size:0.9rem}
            .step-number{width:38px;height:38px;font-size:1rem}
        }

/* roulang page: article */
:root {
            --brand-primary: #ff5e14;
            --brand-primary-hover: #e84d0a;
            --brand-secondary: #ff8c42;
            --brand-dark: #14141f;
            --brand-darker: #0d0d17;
            --brand-nav: #1a1a2e;
            --text-primary: #1e1e2d;
            --text-secondary: #5a5a72;
            --text-muted: #8a8aa0;
            --text-light: #b0b0c0;
            --bg-page: #f4f4f9;
            --bg-card: #ffffff;
            --bg-soft: #fafafd;
            --border-color: #e4e4ef;
            --border-light: #f0f0f7;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.14);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 24px;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --transition-fast: 0.15s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s ease;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-page);
            color: var(--text-primary);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--brand-primary);
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input {
            font-family: inherit;
        }

        .container-custom {
            width: 100%;
            max-width: 1240px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        @media (max-width: 768px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ========== 导航栏 ========== */
        .site-navbar {
            background: var(--brand-nav);
            padding: 10px 0;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.25);
            position: sticky;
            top: 0;
            z-index: 1050;
            border-bottom: 2px solid rgba(255, 94, 20, 0.25);
        }

        .site-navbar .navbar-brand {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.25rem;
            color: #ffffff;
            display: flex;
            align-items: center;
            gap: 9px;
            letter-spacing: 0.02em;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }

        .site-navbar .navbar-brand:hover {
            color: var(--brand-secondary);
        }

        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .site-navbar .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.25);
            padding: 6px 10px;
            border-radius: 8px;
            transition: border-color var(--transition-fast);
        }

        .site-navbar .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(255, 94, 20, 0.3);
            outline: none;
        }

        .site-navbar .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.75)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        .site-navbar .navbar-nav .nav-link {
            color: rgba(255, 255, 255, 0.78);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 8px 16px;
            border-radius: 8px;
            transition: all var(--transition-fast);
            position: relative;
        }

        .site-navbar .navbar-nav .nav-link:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.07);
        }

        .site-navbar .navbar-nav .nav-link.active {
            color: #ffffff;
            background: rgba(255, 94, 20, 0.18);
            font-weight: 600;
        }

        .site-navbar .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--brand-primary);
            border-radius: 2px;
        }

        .search-box {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 24px;
            padding: 6px 14px;
            gap: 8px;
            border: 1px solid rgba(255, 255, 255, 0.12);
            transition: all var(--transition-normal);
        }

        .search-box:focus-within {
            background: rgba(255, 255, 255, 0.14);
            border-color: var(--brand-primary);
            box-shadow: 0 0 0 3px rgba(255, 94, 20, 0.15);
        }

        .search-box button {
            background: none;
            border: none;
            color: rgba(255, 255, 255, 0.6);
            padding: 4px;
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }

        .search-box button:hover {
            color: var(--brand-secondary);
        }

        .search-box input {
            background: transparent;
            border: none;
            outline: none;
            color: #fff;
            font-size: 0.85rem;
            width: 140px;
            padding: 2px 0;
        }

        .search-box input::placeholder {
            color: rgba(255, 255, 255, 0.35);
        }

        .nav-cta-btn {
            display: inline-block;
            background: linear-gradient(135deg, var(--brand-primary), #ff7b3d);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            padding: 9px 20px;
            border-radius: 24px;
            white-space: nowrap;
            transition: all var(--transition-normal);
            box-shadow: 0 4px 14px rgba(255, 94, 20, 0.35);
            border: none;
            letter-spacing: 0.02em;
        }

        .nav-cta-btn:hover {
            background: linear-gradient(135deg, #ff7b3d, #ff9a5c);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 22px rgba(255, 94, 20, 0.45);
        }

        @media (max-width: 991.98px) {
            .site-navbar .navbar-collapse {
                background: var(--brand-nav);
                border-radius: 0 0 var(--radius-md) var(--radius-md);
                padding: 12px 16px 16px;
                margin-top: 8px;
                border: 1px solid rgba(255, 255, 255, 0.08);
            }
            .site-navbar .navbar-nav {
                gap: 2px;
            }
            .site-navbar .navbar-nav .nav-link {
                padding: 10px 14px;
                border-radius: 8px;
            }
            .search-box {
                margin-top: 10px;
                width: 100%;
            }
            .search-box input {
                width: 100%;
            }
            .nav-cta-btn {
                margin-top: 10px;
                text-align: center;
                width: 100%;
            }
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-section {
            background: #fff;
            border-bottom: 1px solid var(--border-light);
            padding: 12px 0;
        }

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
            margin: 0;
            padding: 0;
            font-size: 0.85rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .breadcrumb-custom li {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb-custom li a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .breadcrumb-custom li a:hover {
            color: var(--brand-primary);
        }

        .breadcrumb-custom .separator {
            color: #c4c4d4;
            font-size: 0.7rem;
        }

        .breadcrumb-custom .current {
            color: var(--text-primary);
            font-weight: 500;
            max-width: 280px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        @media (max-width: 576px) {
            .breadcrumb-custom .current {
                max-width: 160px;
            }
        }

        /* ========== 文章主体布局 ========== */
        .article-main-wrapper {
            flex: 1;
            padding: 32px 0 48px;
        }

        .article-content-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
        }

        /* ========== 文章头部 ========== */
        .article-hero {
            position: relative;
            padding: 48px 40px 36px;
            background: linear-gradient(170deg, #1a1a2e 0%, #252540 40%, #1e1e35 100%);
            color: #fff;
            overflow: hidden;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 55%;
            height: 100%;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.16;
            pointer-events: none;
            mask-image: linear-gradient(to left, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0) 100%);
            -webkit-mask-image: linear-gradient(to left, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0) 100%);
        }

        .article-hero::after {
            content: '';
            position: absolute;
            bottom: -40px;
            right: -40px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255,94,20,0.25) 0%, transparent 70%);
            pointer-events: none;
        }

        .article-hero-content {
            position: relative;
            z-index: 2;
            max-width: 780px;
        }

        .article-category-badge {
            display: inline-block;
            background: rgba(255, 94, 20, 0.85);
            color: #fff;
            font-size: 0.78rem;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 20px;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
            text-transform: uppercase;
        }

        .article-hero h1 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            line-height: 1.35;
            margin: 0 0 14px;
            color: #fff;
            letter-spacing: 0.01em;
        }

        .article-meta-row {
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.7);
        }

        .article-meta-row span {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta-row i {
            font-size: 0.8rem;
            color: var(--brand-secondary);
        }

        @media (max-width: 768px) {
            .article-hero {
                padding: 32px 20px 28px;
            }
            .article-hero h1 {
                font-size: 1.5rem;
            }
            .article-hero::before {
                width: 100%;
                opacity: 0.1;
            }
        }

        @media (max-width: 520px) {
            .article-hero h1 {
                font-size: 1.3rem;
            }
            .article-meta-row {
                font-size: 0.8rem;
                gap: 10px;
            }
        }

        /* ========== 文章正文 ========== */
        .article-body-section {
            padding: 36px 40px;
        }

        .article-body {
            font-size: 1.02rem;
            line-height: 1.85;
            color: var(--text-primary);
            max-width: 100%;
            word-wrap: break-word;
        }

        .article-body h2 {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 32px 0 16px;
            padding-left: 16px;
            border-left: 4px solid var(--brand-primary);
            line-height: 1.35;
        }

        .article-body h3 {
            font-family: var(--font-heading);
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-primary);
            margin: 24px 0 12px;
            line-height: 1.4;
        }

        .article-body h4 {
            font-family: var(--font-heading);
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            margin: 20px 0 10px;
        }

        .article-body p {
            margin: 0 0 16px;
        }

        .article-body img {
            border-radius: var(--radius-md);
            margin: 20px auto;
            box-shadow: var(--shadow-sm);
            max-width: 100%;
            height: auto;
        }

        .article-body blockquote {
            background: var(--bg-soft);
            border-left: 4px solid var(--brand-secondary);
            padding: 16px 22px;
            margin: 20px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }

        .article-body ul,
        .article-body ol {
            margin: 0 0 16px;
            padding-left: 24px;
        }

        .article-body li {
            margin-bottom: 6px;
        }

        .article-body code {
            background: #f0f0f7;
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.9em;
            color: #d94a0a;
        }

        .article-body pre {
            background: #1e1e2d;
            color: #e0e0e0;
            padding: 18px 22px;
            border-radius: var(--radius-md);
            overflow-x: auto;
            margin: 18px 0;
            font-size: 0.9rem;
            line-height: 1.6;
        }

        .article-body pre code {
            background: none;
            color: inherit;
            padding: 0;
            font-size: inherit;
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 18px 0;
            font-size: 0.95rem;
        }

        .article-body table th,
        .article-body table td {
            border: 1px solid var(--border-color);
            padding: 10px 14px;
            text-align: left;
        }

        .article-body table th {
            background: var(--bg-soft);
            font-weight: 600;
        }

        .article-body a {
            color: var(--brand-primary);
            text-decoration: underline;
            text-underline-offset: 2px;
        }

        .article-body a:hover {
            color: var(--brand-primary-hover);
        }

        @media (max-width: 768px) {
            .article-body-section {
                padding: 24px 18px;
            }
            .article-body {
                font-size: 0.95rem;
                line-height: 1.75;
            }
            .article-body h2 {
                font-size: 1.3rem;
                padding-left: 12px;
            }
            .article-body h3 {
                font-size: 1.08rem;
            }
        }

        @media (max-width: 520px) {
            .article-body-section {
                padding: 18px 14px;
            }
            .article-body {
                font-size: 0.9rem;
            }
            .article-body h2 {
                font-size: 1.15rem;
            }
        }

        /* ========== 文章底部标签区 ========== */
        .article-tags-bar {
            padding: 0 40px 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
            border-bottom: 1px solid var(--border-light);
            margin: 0 40px 20px;
        }

        .article-tags-bar .tag-label {
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--text-secondary);
        }

        .article-tag {
            display: inline-block;
            background: #fef4ef;
            color: var(--brand-primary);
            font-size: 0.8rem;
            padding: 5px 13px;
            border-radius: 20px;
            font-weight: 500;
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }

        .article-tag:hover {
            background: #fff;
            border-color: var(--brand-primary);
            color: var(--brand-primary-hover);
            cursor: pointer;
        }

        @media (max-width: 768px) {
            .article-tags-bar {
                padding: 0 18px 16px;
                margin: 0 18px 16px;
            }
        }

        /* ========== 相关推荐区 ========== */
        .related-section {
            padding: 28px 40px 36px;
        }

        .related-section .section-label {
            font-family: var(--font-heading);
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .related-section .section-label::before {
            content: '';
            display: inline-block;
            width: 4px;
            height: 22px;
            background: var(--brand-primary);
            border-radius: 2px;
        }

        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            border: 1px solid var(--border-light);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .related-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: rgba(255, 94, 20, 0.25);
        }

        .related-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }

        .related-card-body {
            padding: 16px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .related-card-body h4 {
            font-family: var(--font-heading);
            font-size: 1rem;
            font-weight: 600;
            margin: 0 0 8px;
            color: var(--text-primary);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card-body .related-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        @media (max-width: 768px) {
            .related-section {
                padding: 20px 18px 28px;
            }
            .related-card-img {
                height: 150px;
            }
        }

        /* ========== CTA 区域 ========== */
        .cta-section-alt {
            background: linear-gradient(160deg, #1a1a2e 0%, #222240 100%);
            padding: 40px 32px;
            border-radius: var(--radius-lg);
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section-alt::before {
            content: '';
            position: absolute;
            top: -60px;
            left: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255,140,66,0.3) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-section-alt h3 {
            font-family: var(--font-heading);
            font-size: 1.4rem;
            font-weight: 700;
            margin: 0 0 10px;
            position: relative;
            z-index: 1;
        }

        .cta-section-alt p {
            color: rgba(255, 255, 255, 0.7);
            margin: 0 0 20px;
            position: relative;
            z-index: 1;
            font-size: 0.95rem;
        }

        .cta-section-alt .cta-btn-lg {
            display: inline-block;
            background: linear-gradient(135deg, var(--brand-primary), #ff7b3d);
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            padding: 12px 30px;
            border-radius: 28px;
            transition: all var(--transition-normal);
            box-shadow: 0 6px 20px rgba(255, 94, 20, 0.4);
            position: relative;
            z-index: 1;
            letter-spacing: 0.02em;
            border: none;
        }

        .cta-section-alt .cta-btn-lg:hover {
            background: linear-gradient(135deg, #ff7b3d, #ff9a5c);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(255, 94, 20, 0.5);
        }

        @media (max-width: 520px) {
            .cta-section-alt {
                padding: 28px 18px;
                border-radius: var(--radius-md);
            }
            .cta-section-alt h3 {
                font-size: 1.15rem;
            }
            .cta-section-alt .cta-btn-lg {
                padding: 10px 24px;
                font-size: 0.9rem;
            }
        }

        /* ========== 404 / 内容未找到 ========== */
        .not-found-section {
            text-align: center;
            padding: 60px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            max-width: 600px;
            margin: 0 auto;
        }

        .not-found-icon {
            font-size: 4rem;
            color: #d0d0dc;
            margin-bottom: 20px;
        }

        .not-found-section h2 {
            font-family: var(--font-heading);
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 10px;
        }

        .not-found-section p {
            color: var(--text-secondary);
            margin: 0 0 24px;
            font-size: 0.95rem;
        }

        .not-found-section .back-home-btn {
            display: inline-block;
            background: var(--brand-primary);
            color: #fff;
            font-weight: 600;
            padding: 11px 26px;
            border-radius: 24px;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-sm);
        }

        .not-found-section .back-home-btn:hover {
            background: var(--brand-primary-hover);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        .not-found-img {
            max-width: 280px;
            margin: 0 auto 24px;
            border-radius: var(--radius-md);
            opacity: 0.7;
        }

        @media (max-width: 520px) {
            .not-found-section {
                padding: 40px 16px;
            }
            .not-found-section h2 {
                font-size: 1.3rem;
            }
            .not-found-icon {
                font-size: 3rem;
            }
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--brand-darker);
            color: rgba(255, 255, 255, 0.7);
            padding: 32px 0 20px;
            margin-top: auto;
        }

        .footer-brand {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.15rem;
            color: #fff;
            margin-bottom: 4px;
            letter-spacing: 0.03em;
        }

        .footer-links {
            display: flex;
            gap: 22px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }

        .footer-links li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }

        .footer-links li a:hover {
            color: var(--brand-secondary);
        }

        .footer-divider {
            border-color: rgba(255, 255, 255, 0.1);
            margin: 16px 0;
            opacity: 0.5;
        }

        .copyright {
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.4);
            margin: 0;
            letter-spacing: 0.02em;
        }

        @media (max-width: 768px) {
            .footer-links {
                justify-content: flex-start;
                gap: 14px;
                margin-top: 8px;
            }
            .site-footer {
                padding: 24px 0 16px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #5B3CC4;
            --primary-light: #7B5DD6;
            --primary-dark: #4A2DA8;
            --primary-soft: #EDE8FB;
            --accent: #FF6B3D;
            --accent-hover: #E55A2F;
            --accent-soft: #FFF0EB;
            --success: #10B981;
            --success-soft: #ECFDF5;
            --warning: #F59E0B;
            --warning-soft: #FFFBEB;
            --bg-body: #F8F9FC;
            --bg-white: #FFFFFF;
            --bg-dark: #1A1A2E;
            --bg-dark-light: #252540;
            --bg-card: #FFFFFF;
            --text-primary: #1E1E2E;
            --text-secondary: #4B5563;
            --text-muted: #9CA3AF;
            --text-light: #6B7280;
            --border: #E5E7EB;
            --border-light: #F3F4F6;
            --radius-xs: 6px;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --radius-full: 50px;
            --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --shadow: 0 4px 16px rgba(0,0,0,0.07), 0 2px 6px rgba(0,0,0,0.04);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.09), 0 3px 10px rgba(0,0,0,0.05);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.11), 0 4px 16px rgba(0,0,0,0.06);
            --shadow-xl: 0 24px 64px rgba(0,0,0,0.14), 0 8px 24px rgba(0,0,0,0.07);
            --transition-fast: 0.18s ease;
            --transition: 0.25s ease;
            --transition-slow: 0.35s ease;
            --font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --container-max: 1200px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-family);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-body);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            min-height: 100vh;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
        }
        input {
            font-family: inherit;
        }

        .container-custom {
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== 导航 ===== */
        .site-navbar {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            padding: 10px 0;
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: var(--shadow-xs);
            transition: box-shadow var(--transition);
        }
        .site-navbar.scrolled {
            box-shadow: var(--shadow-sm);
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--primary) !important;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
            letter-spacing: -0.01em;
            transition: opacity var(--transition-fast);
        }
        .navbar-brand:hover {
            opacity: 0.85;
            color: var(--primary-dark) !important;
        }
        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: var(--radius-sm);
            color: #fff;
            font-size: 1rem;
            flex-shrink: 0;
        }
        .navbar-nav .nav-link {
            font-weight: 500;
            font-size: 0.925rem;
            color: var(--text-secondary);
            padding: 8px 16px !important;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }
        .navbar-nav .nav-link:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }
        .navbar-nav .nav-link.active {
            color: var(--primary) !important;
            background: var(--primary-soft);
            font-weight: 600;
        }
        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 3px;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-body);
            border: 1px solid var(--border);
            border-radius: var(--radius-full);
            padding: 6px 14px;
            gap: 8px;
            transition: all var(--transition-fast);
            min-width: 180px;
        }
        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(91,60,196,0.08);
            background: var(--bg-white);
        }
        .search-box button {
            background: none;
            border: none;
            color: var(--text-muted);
            font-size: 0.9rem;
            padding: 0;
            display: flex;
            align-items: center;
            transition: color var(--transition-fast);
        }
        .search-box button:hover {
            color: var(--primary);
        }
        .search-box input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 0.875rem;
            color: var(--text-primary);
            width: 100%;
            min-width: 100px;
        }
        .search-box input::placeholder {
            color: var(--text-muted);
        }
        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: linear-gradient(135deg, var(--accent), #FF8A5C);
            color: #fff !important;
            font-weight: 600;
            font-size: 0.875rem;
            padding: 9px 22px;
            border-radius: var(--radius-full);
            white-space: nowrap;
            transition: all var(--transition);
            box-shadow: 0 2px 10px rgba(255,107,61,0.3);
            letter-spacing: 0.01em;
        }
        .nav-cta-btn:hover {
            background: linear-gradient(135deg, var(--accent-hover), #FF7040);
            box-shadow: 0 4px 18px rgba(255,107,61,0.4);
            transform: translateY(-1px);
            color: #fff !important;
        }
        .nav-cta-btn:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(255,107,61,0.3);
        }
        .navbar-toggler {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 6px 10px;
            transition: all var(--transition-fast);
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(91,60,196,0.1);
            outline: none;
        }

        /* ===== Hero ===== */
        .hero-banner {
            position: relative;
            background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            min-height: 520px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            overflow: hidden;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(26,26,46,0.82) 0%, rgba(26,26,46,0.65) 60%, rgba(26,26,46,0.88) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 780px;
            padding: 60px 20px;
            color: #fff;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(255,255,255,0.15);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid rgba(255,255,255,0.22);
            color: #fff;
            font-size: 0.85rem;
            font-weight: 500;
            padding: 6px 18px;
            border-radius: var(--radius-full);
            margin-bottom: 20px;
            letter-spacing: 0.02em;
        }
        .hero-badge i {
            margin-right: 6px;
            color: var(--accent);
        }
        .hero-title {
            font-size: 3rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.2;
            margin-bottom: 16px;
            text-shadow: 0 2px 12px rgba(0,0,0,0.3);
        }
        .hero-title span {
            color: var(--accent);
        }
        .hero-desc {
            font-size: 1.15rem;
            color: rgba(255,255,255,0.85);
            line-height: 1.75;
            margin-bottom: 32px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .hero-btns {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .btn-hero-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            padding: 14px 32px;
            border-radius: var(--radius-full);
            border: none;
            transition: all var(--transition);
            box-shadow: 0 6px 22px rgba(255,107,61,0.4);
            letter-spacing: 0.01em;
        }
        .btn-hero-primary:hover {
            background: var(--accent-hover);
            box-shadow: 0 10px 30px rgba(255,107,61,0.5);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-hero-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            padding: 14px 32px;
            border-radius: var(--radius-full);
            border: 2px solid rgba(255,255,255,0.5);
            transition: all var(--transition);
            letter-spacing: 0.01em;
        }
        .btn-hero-outline:hover {
            background: rgba(255,255,255,0.1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== 板块通用 ===== */
        .section-block {
            padding: 70px 0;
        }
        .section-block.alt-bg {
            background: var(--bg-white);
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 5px 16px;
            border-radius: var(--radius-full);
            margin-bottom: 14px;
        }
        .section-title {
            font-size: 2.1rem;
            font-weight: 750;
            letter-spacing: -0.015em;
            color: var(--text-primary);
            margin-bottom: 10px;
            line-height: 1.3;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.65;
        }

        /* ===== 步骤流程板块 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step-counter;
        }
        .step-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 32px 24px 24px;
            text-align: center;
            position: relative;
            transition: all var(--transition);
            counter-increment: step-counter;
            box-shadow: var(--shadow-xs);
        }
        .step-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--primary-soft);
        }
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            font-weight: 700;
            font-size: 1.25rem;
            border-radius: 50%;
            margin-bottom: 18px;
            box-shadow: 0 4px 14px rgba(91,60,196,0.3);
        }
        .step-card h3 {
            font-size: 1.1rem;
            font-weight: 650;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .step-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }
        .step-connector {
            display: none;
        }

        /* ===== 优势卡片 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 30px 24px;
            transition: all var(--transition);
            box-shadow: var(--shadow-xs);
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 14px;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--primary-soft);
        }
        .feature-icon-wrap {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: var(--radius);
            font-size: 1.35rem;
            flex-shrink: 0;
        }
        .feature-icon-wrap.purple {
            background: var(--primary-soft);
            color: var(--primary);
        }
        .feature-icon-wrap.orange {
            background: var(--accent-soft);
            color: var(--accent);
        }
        .feature-icon-wrap.green {
            background: var(--success-soft);
            color: var(--success);
        }
        .feature-card h3 {
            font-size: 1.05rem;
            font-weight: 650;
            color: var(--text-primary);
            margin: 0;
        }
        .feature-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }

        /* ===== 推荐游戏卡片 ===== */
        .game-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .game-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            box-shadow: var(--shadow-xs);
        }
        .game-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: transparent;
        }
        .game-card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
        }
        .game-card-body {
            padding: 20px;
        }
        .game-card-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
            margin-bottom: 10px;
        }
        .game-tag {
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: var(--radius-full);
            letter-spacing: 0.02em;
        }
        .game-tag.newbie {
            background: var(--success-soft);
            color: var(--success);
        }
        .game-tag.hot {
            background: var(--accent-soft);
            color: var(--accent);
        }
        .game-tag.recommend {
            background: var(--primary-soft);
            color: var(--primary);
        }
        .game-card h3 {
            font-size: 1.05rem;
            font-weight: 650;
            margin-bottom: 6px;
            color: var(--text-primary);
        }
        .game-card .game-meta {
            font-size: 0.85rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .game-card .game-meta i {
            font-size: 0.75rem;
        }

        /* ===== 数据条 ===== */
        .stats-strip {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            padding: 48px 0;
            color: #fff;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }
        .stat-item .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1;
            margin-bottom: 8px;
        }
        .stat-item .stat-label {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.75);
            font-weight: 500;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-xs);
        }
        .faq-item:hover {
            border-color: var(--primary-soft);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            text-align: left;
            padding: 18px 22px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            cursor: pointer;
            transition: color var(--transition-fast);
            line-height: 1.5;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question i {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 22px;
            font-size: 0.925rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        /* ===== CTA ===== */
        .cta-block {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            text-align: center;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-md);
            max-width: 800px;
            margin: 0 auto;
        }
        .cta-block h2 {
            font-size: 1.75rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        .cta-block p {
            color: var(--text-secondary);
            margin-bottom: 26px;
            font-size: 1rem;
            line-height: 1.7;
        }
        .btn-cta-lg {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--accent), #FF8A5C);
            color: #fff;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 15px 36px;
            border-radius: var(--radius-full);
            border: none;
            transition: all var(--transition);
            box-shadow: 0 6px 24px rgba(255,107,61,0.4);
            letter-spacing: 0.01em;
        }
        .btn-cta-lg:hover {
            background: linear-gradient(135deg, var(--accent-hover), #FF7040);
            box-shadow: 0 10px 32px rgba(255,107,61,0.5);
            transform: translateY(-2px);
            color: #fff;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: #fff;
            padding: 40px 0 24px;
            margin-top: 0;
        }
        .footer-brand {
            font-weight: 700;
            font-size: 1.15rem;
            color: #fff;
            margin-bottom: 4px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }
        .footer-links a {
            color: rgba(255,255,255,0.65);
            font-size: 0.875rem;
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-divider {
            border-color: rgba(255,255,255,0.12);
            margin: 20px 0;
        }
        .copyright {
            font-size: 0.8rem;
            color: rgba(255,255,255,0.45);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .game-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .hero-title {
                font-size: 2.3rem;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .search-box {
                min-width: 140px;
            }
        }

        @media (max-width: 768px) {
            .hero-banner {
                min-height: 400px;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .hero-content {
                padding: 40px 16px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .features-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .game-cards-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .section-block {
                padding: 44px 0;
            }
            .section-title {
                font-size: 1.45rem;
            }
            .cta-block {
                padding: 32px 20px;
                margin: 0 12px;
                border-radius: var(--radius-lg);
            }
            .cta-block h2 {
                font-size: 1.35rem;
            }
            .btn-hero-primary,
            .btn-hero-outline {
                font-size: 0.9rem;
                padding: 12px 24px;
            }
            .search-box {
                min-width: auto;
                flex: 1;
            }
            .nav-cta-btn {
                font-size: 0.8rem;
                padding: 8px 16px;
            }
            .stat-item .stat-number {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.5rem;
            }
            .hero-desc {
                font-size: 0.875rem;
            }
            .hero-btns {
                flex-direction: column;
                align-items: center;
            }
            .btn-hero-primary,
            .btn-hero-outline {
                width: 100%;
                justify-content: center;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-item .stat-number {
                font-size: 1.5rem;
            }
            .stat-item .stat-label {
                font-size: 0.78rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 14px 16px;
            }
            .faq-answer {
                font-size: 0.85rem;
                padding: 0 16px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 14px;
            }
            .footer-links {
                gap: 12px;
                justify-content: center;
            }
        }